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Platinum. Done By: Aagam Nanavati G9Pearl. Found In Group 10 Of The Periodic Table. History. Charles Wood found samples of colombian platinum in jamiaca in the year 1741 Charles then sent it to William Brownrigg for further investigation
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Platinum Done By: Aagam Nanavati G9Pearl
History • Charles Wood found samples of colombian platinum in jamiaca in the year 1741 • Charles then sent it to William Brownrigg for further investigation • Antonio de Ulloa was also credited for the discovery of platinum • Antonio’s described that platinum was neither separable nor calcinable • In 1750, after Brownrigg studied platinum he said that he had not seen this metal in any accounts of known menirals • People referred to it as “White Gold”
Method of Extraction • Platinum is rarely found on its own • Usually found combined with other precious metals in a ore • It is found in secondary deposits in alluvial deposits • Extraction of the pure metal from ores is a complex process, and includes milling the ore, a froth floatation process, and smelting at high temperatures • This removes base metals, notably iron and sulphur, and concentrate PGM- platinum group metals- gold, platinum and palladium • The PGM matte is further processed by electrolysis to remove nickel, copper and cobalt • The high grade concentrate is treated by solvent extraction, distilling, and ion exchange treatment to separate the PGMs into it's separate metals
Uses • Jewellery • Wires: electrodes • Pans and Supports: are used in thermo gravimetric analysis • Alloying agent for various metal products including: • fine wires • noncorrosive laboratory containers • medical instruments • dental prostheses • electrical contacts • thermocouples
Special Thanks To • C3shooter. (2012, March 11). How is platinum extracted from its ore. Retrieved from http://wiki.answers.com/Q/How_is_platinum_extracted_from_its_ore? • Google. (n.d.). Google images. Retrieved from images.google.com • Wikipedia. (2014, January 28). Platinum. Retrieved from http://en.wikipedia.org/wiki/Platinum